Subject: Re: MP interrupt problems with PRIMERGY RX300 --- Success
To: Peter O'Kane <>
From: Frank van der Linden <>
List: tech-smp
Date: 12/20/2004 10:29:12
On Fri, Dec 17, 2004 at 05:01:30PM +0000, Peter O'Kane wrote:
> O.K. I have got my RX300 running with all four logical processors.
> Problem appears to be that, at the point where the ioapics are enabled, the 
> local apic on the second physical processor is not properly initialized to 
> take part in the negotiations needed for lowest priority delivery mode and 
> that, even though only the BSP is specified as the interrupt target the 
> LOPRI delivery mode is being specified.

That's an interesting observation.. I wasn't actually aware that this
could happen. Where in the Intel documentation is this described? It
may explain some other problems, and I'd like to fix it.

- Frank